16 results
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Differential Diagnosis Algorithm ... Cataract/Lens Dislocation ... Nerve VI problem ... Nerve Ill - Eye ... Nerve IV - Eye
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
nerve in the radial ... Carpal Tunnel Syndrome ... in the median nerve ... Anterior Shoulder Dislocation ... nerve damage resulting
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
enhancement of the optic nerve ... inflammation of the nerves ... , oculomotor nerve ... , abducens nerve ... HZO #clinical #video
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
anterior interosseous nerve ... + radial head fracture ... fracture • ED Management ... #Posterior #Radiology ... XRay #Diagnosis #Management
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
head dislocation ... head dislocation ... posterior interosseous nerve ... ), compartment syndrome ... Forearm #Ulnar #Radiology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Differential Diagnosis Algorithm ... Neuropathies • Optic Nerve ... Syphilis (light-near dissociation ... Midbrain (Parinaud's Syndrome ... #Causes #Ophthalmology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
, triquetrum), radial ... fracture, median nerve ... injury • ED Management ... Wrist #Carpal #Radiology ... XRay #Diagnosis #Management
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Causes of Hemiplegia ... Consciousness • Cranial ... Nerve Palsies ... Brown-Sequard Syndrome ... #Causes
Ear Pain / Otalgia - Differential Diagnosis Algorithm
Referred Otaliga:
 • Via Vagus or Glossopharyngeal Nerves
 •
Glossopharyngeal Nerves ... External Auditory Canal ... Zoster (Ramsay Hunt Syndrome ... if Facial Nerve ... #Causes
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
30%) • Facial Nerve ... • Pain: Due to nerve ... Albuminocytologic dissociation ... intrathecal spinal nerve ... #diagnosis #management